This invention discloses a hollow-body guitar with a large rectangular sound hole between the neck and bridge, with two pickup mounting slots on each side of the sound hole in removable top plates, including a system of top plates and mounting adapters for 7 different single-coil and dual-coil pickup types. The invention has a system humbucking pickup circuit mixing modules that can be cascaded in linear or tree form to mix all the types of pickups in the output, providing a much wider range of tones than current 3-way and 5-way switching systems. For example, three matched single-coil pickups and one humbucker can be mixed to provide 19 humbucking circuits and 18 circuits with hum. Mixed a different way, using switchless analog circuits, they can produce the tones of all 19 switched humbucking circuits, plus all the continuous variations in between.

A vibraphone pickup has a bobbin having two coils, one for outputting an analog signal and one for outputting a digital signal. A plurality of filters and buffers are used to isolate the signals. A rare earth (or neodymium) magnet is used in the center of the bobbin. In one method of use, a vibraphone pickup is used to pick up each note of the vibraphone. The output of each vibraphone pickup is combined and fed into an amplifier.

A vibraphone pickup has a bobbin having two coils, one for outputting an analog signal and one for outputting a digital signal. A plurality of filters and buffers are used to isolate the signals. A rare earth (or neodymium) magnet is used in the center of the bobbin. In one method of use, a vibraphone pickup is used to pick up each note of the vibraphone. The output of each vibraphone pickup is combined and fed into an amplifier.

A vibraphone pickup has a bobbin having two coils, one for outputting an analog signal and one for outputting a digital signal. A plurality of filters and buffers are used to isolate the signals. A rare earth (or neodymium) magnet is used in the center of the bobbin. In one method of use, a vibraphone pickup is used to pick up each note of the vibraphone. The output of each vibraphone pickup is combined and fed into an amplifier.

A pickup with variable coil windings for string instruments is described herein. In one aspect, the pickup including a coil including a first subsection wound around a first subset of pole pieces of a plurality of pole pieces; and a second subsection wound around a set of pole pieces of the plurality of pole pieces, the set of pole pieces selected from the group of: the plurality of pole pieces in its entirety and a second subset of pole pieces different than the first subset of pole pieces.

A hum-cancelling system includes two or more hum-cancelling coils configured in a distributed manner, connected in series with each other. The hum-cancelling coils form a series circuit that is electrically connected to at least one pickup. Each hum-cancelling coil includes a top plate, a bottom plate, and a coil of wire wrapped between the top plate and the bottom plate.

A pickup with variable coil windings for string instruments is described herein. In one aspect, the pickup including a coil including a first subsection wound around a first subset of pole pieces of a plurality of pole pieces; and a second subsection wound around a set of pole pieces of the plurality of pole pieces, the set of pole pieces selected from the group of: the plurality of pole pieces in its entirety and a second subset of pole pieces different than the first subset of pole pieces.

A vibraphone pickup has a bobbin having two coils, one for outputting an analog signal and one for outputting a digital signal. A plurality of filters and buffers are used to isolate the signals. A rare earth (or neodymium) magnet is used in the center of the bobbin. In one method of use, a vibraphone pickup is used to pick up each note of the vibraphone. The output of each vibraphone pickup is combined and fed into an amplifier.

A stringed instrument pickup with multiple selectable coils can be utilized in a system to provide a diverse range of sound characteristics from at least one moving string under tension. A first wire can be connected to a first terminal of a first bobbin body prior to the first wire being wound around the first bobbin body a first number of times and then connecting the first wire to a second terminal of the first bobbin body. A second wire may be connected to the second terminal of the first bobbin body before winding the second wire around the first bobbin body a second number of times and then connecting the second wire to a third terminal of the first bobbin body. The first bobbin body is subsequently mounted onto a stringed instrument.

A hum-cancelling system includes two or more hum-cancelling coils configured in a distributed manner, connected in series with each other. The hum-cancelling coils form a series circuit that is electrically connected to at least one pickup. Each hum-cancelling coil includes a top plate, a bottom plate, and a coil of wire wrapped between the top plate and the bottom plate.